Problem uploading to board.

I am trying to check if I can replace a 'Micro' with a 'Uno' for a simple task such as the 'Blink' program.

With the 'Uno' I can edit the delay values and upload successfully but with the 'Micro' after editing the delay values I get the message "An error occurred while uploading the sketch" and the flash speed remains unaltered.

Any suggestions please?